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Safety Glass


Published 1938


National Archives description: "Reel 1, sand rock and silica sand are quarried, dried, and shipped to a glass plant, where they are melted and made into sheets of glass.
Reel 2, cellulose acetate is placed between sheets of glass and, after various processes, safety glass for automobile windows is produced."
National Archives Identifier: 12485


Run time 22 minutes 55 seconds
Producer United States. Bureau of Mines
Audio/Visual silent, black & white
Language English

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